Burke: Silene suksdorfii vs. Silene scouleri

	Silene suksdorfii	Silene scouleri
	Cascade catchfly, Suksdorf's catchfly	Scouler's catchfly, Scouler's siliene
Habit	Tufted perennial from a branched crown, the numerous, unbranched, erect stems up to 15 cm. tall, finely pubescent and glandular above.	Erect perennial herb from a simple to branched crown, the stems several, up to 8 dm. tall, densely pubescent throughout and glandular above.
Leaves	Basal leaves many, linear to linear-lanceolate, 1-2 cm. long and 1.5-2 mm. broad, sessile; cauline leaves similar, usually only 1 or 2 pairs.	Leaves opposite, numerous, the basal slender-petiolate, the blades oblanceolate, up to 15 cm. long and 3 cm. wide; cauline leaves 2-8 pairs, reduced gradually upward, becoming sessile above.
Flowers	Flowers few, perfect; calyx 5-lobed, tubular, 10-12 mm. long, with 10 prominent, purple nerves; petals 5, white to greenish or lavender, the claw 8-13 mm. long, the blade 3-5 mm. long, bi-lobed less than half its length, usually with small, lateral teeth; appendages 2, 2.5-3.5 mm. long, hairy; stamens 10; styles usually 3.	Flowers numerous, the inflorescence narrow and elongate, consisting of a series of small, congested, lateral cymes; calyx broadly tubular, 5-lobed, 10-18 mm. long; corolla greenish-white to purplish, the claw of the petal 7-16 mm. long, the blade flaring, 4-8 mm. long, from bi-lobed to nearly equally 4-lobed, with 2 appendages at the base, 1-3 mm. long; ovary with a stalk 3-6 mm. long, puberulent to woolly; stamens 10; styles 3.
Fruits	Capsule 1-celled.	Capsule 1-celled.

	Silene suksdorfii	Silene scouleri
Flowering time	June-August	June-August
Habitat	Alpine and subalpine slopes, often on talus.	Prairies, forest openings, and meadows from low elevations to the alpine.
Distribution	Occurring on both sides of the Cascades crest in Washington; northern Washington to California. [WildflowerSearch map] [BONAP county map]	Occuring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	S. acaulis, S. antirrhina, S. bernardina, S. conoidea, S. csereii, S. dichotoma, S. dioica, S. douglasii, S. gallica, S. latifolia, S. menziesii, S. noctiflora, S. oregana, S. paradoxa, S. parryi, S. scouleri, S. seelyi, S. spaldingii, S. vulgaris	S. acaulis, S. antirrhina, S. bernardina, S. conoidea, S. csereii, S. dichotoma, S. dioica, S. douglasii, S. gallica, S. latifolia, S. menziesii, S. noctiflora, S. oregana, S. paradoxa, S. parryi, S. seelyi, S. spaldingii, S. suksdorfii, S. vulgaris
Subordinate taxa		S. scouleri ssp. hallii, S. scouleri ssp. scouleri
Web links	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, OR, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Silene suksdorfii

Silene scouleri

Cascade catchfly, Suksdorf's catchfly

Scouler's catchfly, Scouler's siliene

Habit

Tufted perennial from a branched crown, the numerous, unbranched, erect stems up to 15 cm. tall, finely pubescent and glandular above.

Erect perennial herb from a simple to branched crown, the stems several, up to 8 dm. tall, densely pubescent throughout and glandular above.

Leaves

Basal leaves many, linear to linear-lanceolate, 1-2 cm. long and 1.5-2 mm. broad, sessile;

cauline leaves similar, usually only 1 or 2 pairs.

Leaves opposite, numerous, the basal slender-petiolate, the blades oblanceolate, up to 15 cm. long and 3 cm. wide;

cauline leaves 2-8 pairs, reduced gradually upward, becoming sessile above.

Flowers

Flowers few, perfect;

calyx 5-lobed, tubular, 10-12 mm. long, with 10 prominent, purple nerves;

petals 5, white to greenish or lavender, the claw 8-13 mm. long, the blade 3-5 mm. long, bi-lobed less than half its length, usually with small, lateral teeth; appendages 2, 2.5-3.5 mm. long, hairy;

stamens 10;

styles usually 3.

Flowers numerous, the inflorescence narrow and elongate, consisting of a series of small, congested, lateral cymes;

calyx broadly tubular, 5-lobed, 10-18 mm. long;

corolla greenish-white to purplish, the claw of the petal 7-16 mm. long, the blade flaring, 4-8 mm. long, from bi-lobed to nearly equally 4-lobed, with 2 appendages at the base, 1-3 mm. long;

ovary with a stalk 3-6 mm. long, puberulent to woolly;

stamens 10;

styles 3.

Fruits

Capsule 1-celled.